JP2002165972A - Gaming machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To increase the modes of symbol fluctuation so that a player can maintain the pleasure of seeing a display unit. SOLUTION: A gaming machine such as a pachinko machine, an arrangement ball machine and the like is provided with a display section 8 capable of displaying a symbol, and a player is provided on condition that the symbol displayed on the display section 8 has a predetermined display mode. A configuration that gives a privilege that is a game condition advantageous to 2 is provided. A symbol group recording means 6c capable of recording a symbol group composed of two or more symbols; and a symbol group recording means 6c.
The first symbol variation that sequentially displays the symbols that constitute the symbol group using one or more symbol groups recorded in the first and second symbols that change the number of symbols that are displayed almost simultaneously after displaying two or more symbols that constitute the symbol group A fluctuation switching means 6a capable of switching between two symbol fluctuations. For example, the first symbol variation is switched to the second symbol variation during the variation. In this way, the second symbol variation is realized in addition to the first symbol variation performed by the conventional gaming machine, so that the pleasure of the player 2 looking at the display unit 8 can be maintained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine having a display unit and capable of giving a privilege to a player.

[0002]

2. Description of the Related Art In a pachinko machine, an arrangement ball machine, or the like as a gaming machine, when a game ball wins a starting port, a symbol change using a symbol group including two or more symbols (hereinafter, referred to as "symbol variation"). Start with a liquid crystal display. After the change is started, a combination of the symbols in which the change is partially stopped (for example, the left symbol and the right symbol) may become a reach symbol (for example, a zigzag symbol). In this case, a display such as displaying a still image or a moving image (animation or the like) as a reach, or changing the speed of fluctuation for the remaining fluctuation is performed. Further, thereafter, when the combination of symbols whose fluctuations are finally stopped becomes a jackpot symbol, a jackpot game or the like is performed as a jackpot to give a privilege to the player.

[0003]

However, the only change in symbols performed by the conventional gaming machine is a change in which two or more symbols constituting a symbol group are sequentially displayed. Since there is only one form of the symbol variation, the player gradually gets used to the variation display and gets tired. The present invention has been made in view of such a point, and an object of the present invention is to provide a gaming machine that can increase the number of symbol variations and maintain the enjoyment of viewing the display unit.

[0004]

Means 1 for Solving the Problems Means 1 for solving the problems are as described in claim 1. Here, the terms described in claim 1 are interpreted as follows. This interpretation applies to the other claims and the detailed description of the invention. (1) “Symbols” are all objects that can be displayed on the display unit. For example, lottery display symbols (special symbols, ordinary symbols, etc.) composed of characters (alphanumeric characters, kanji, etc.), symbols, codes, figures (characters, etc.), videos, etc., decorative symbols (foreground symbols, background symbols, etc.), etc. And may be a still image or a moving image such as an animation. A “symbol group” is a group of two or more such symbols. A symbol as an element constituting the symbol group may be changed at an arbitrary timing during a game or the like, or may be unchanged regardless of whether the game is being played. (2) “Stop” includes not only a completely stopped display but also a temporarily stopped display. “Stop” includes not only a display that is stationary, but also a display that moves in an arbitrary direction and an arbitrary distance range around the reference position. (3) The “display section” may be substantially the entire display area in which symbols can be displayed for one display (or display device), or may be a part of the display area. Furthermore, the present invention is not limited to one display device, and may be configured by two or more display devices. (4) The "predetermined display mode" corresponds to a combination of symbols such as a big hit symbol or a single symbol. The "part of the predetermined display mode" described later corresponds to a combination of symbols such as a reach symbol or a single symbol. (5) “Privileges that are advantageous game conditions for the player” include, for example, shortening of the symbol fluctuation period (hereinafter, referred to as “time reduction”), change in the number of time reductions, and change in winning probability (hereinafter, referred to as “probability fluctuation”). ), Changes in the number of payouts associated with winnings, jackpot games with the required number of rounds, operation of movable parts (lids, blades, wings, etc.) provided in winning devices, gates, etc. An embodiment in which the above elements are arbitrarily combined corresponds to the embodiment.

According to the means 1, as schematically shown in FIG. 1, a display section 8 capable of displaying symbols is provided.
Is provided on the condition that the symbol to be displayed is in a predetermined display mode. In addition, a symbol group recording means 6c capable of recording a symbol group composed of two or more symbols, and a first symbol which sequentially displays symbols constituting the symbol group using one or more symbol groups recorded in the symbol group recording means 6c. After displaying the variation and two or more symbols constituting the symbol group (preferably three or more symbols, all symbols may be displayed), it is possible to switch between a second symbol variation in which the number of symbols to be displayed almost simultaneously is changed. Variable change means 6a. Of these, the control for giving a privilege to the player 2 on condition that the symbol is in a predetermined display mode is performed by, for example, the game control unit 4 or the like. All or a part of the symbol changing means 6b and the symbol group recording means 6c are one means of the display control unit 6 for controlling the display on the display unit 8. In the example shown in FIG. 1, the first symbol variation is switched to the second symbol variation.
Since the second symbol variation is realized in addition to the first symbol variation performed in the conventional gaming machine, the pleasure of the player 2 looking at the display unit 8 can be maintained.

[0006]

Means for solving the problem 2 Means for solving the problem are as described in claim 2. Means 2
According to this, the variation switching means 6a switches between the first symbol variation and the second symbol variation after the symbol displayed on the display unit 8 becomes a part of a predetermined display mode (for example, a reach symbol). In this way, the player 2 that recognizes the switching between the first symbol variation and the second symbol variation knows that the symbol has become a part of the predetermined display mode.

[0007]

Means for solving the problem 3 Means for solving the problem are as described in claim 3. Means 3
According to this, a symbol group recording means 6c capable of recording a symbol group composed of two or more symbols, and two or more symbols constituting the symbol group using one or more symbol groups recorded in the symbol group recording means 6c And a symbol changing means 6b for changing the number of symbols to be displayed almost simultaneously after the symbol is displayed. The whole or a part of the symbol changing means 6b is one means of the display control unit 6 for controlling the display of the symbol on the display unit 8. Note that the display unit 8, the game control unit 4, and the like are the same as those in the means 1 described above. In the example shown in FIG. 1, after displaying all the symbols constituting the symbol group, the number of symbols to be displayed almost simultaneously is reduced and displayed. With such a display in an unconventional manner, the pleasure of the player 2 looking at the display unit 8 can be maintained.

[0008]

Means 4 for solving the problem Means 4 for solving the problem are as described in claim 4. Means 4
According to the above, in the second symbol change, a symbol to be changed is determined by lottery. That is, the symbols to be increased or decreased are determined by lottery using random numbers or the like. By doing so, it becomes impossible to recognize which symbol becomes invisible and disappears from the display unit 8 and it becomes impossible to predict which symbol becomes visible and displayed on the display unit 8, so that the player 2 is interested in the display unit 8 To see.

[0009]

Means for solving the problem 5 Means for solving the problem are as described in claim 5. The means 5
According to the first variation, when changing the number of symbols to be displayed almost simultaneously, the first symbol is displayed invisibly so that the symbol goes out of the area of the display unit 8 to the outside of the area.
One or both of a display mode and a second display mode in which symbols are visually displayed so as to enter the area from outside the area of the display unit 8 are performed. That is, in the first display mode, the number of symbols displayed almost simultaneously decreases, and in the second display mode, the number of symbols displayed almost simultaneously increases. The display mode is such that the symbol goes out of the area of the display unit 8 or enters the area on the contrary, so that the increase or decrease of the symbol can be recognized.

[0010]

Means for solving the problem 6 is a game machine according to any one of claims 1 to 5, wherein a predetermined display mode can be configured in the second symbol change. The number of symbols is changed while displaying symbols. According to the means 6, a symbol (for example, a big hit symbol or the like) that can configure a predetermined display mode remains displayed regardless of the increase or decrease of the symbol. In the third to sixth rows from the top of the example shown in FIG. 1, the symbol “7” that can constitute the big hit symbol is still displayed. In this way, the player 2 looks at the display unit 8 with a sense of expectation.

[0011]

Means for Solving the Problem The means for solving the problem is the gaming machine according to any one of the first to fifth aspects, wherein the number of symbols is changed in the second symbol change. With the change, one or both of the change direction and the pattern form are changed. According to the means 7, the number of symbols is increased / decreased, and at the same time, the changing direction and the shape of the symbols are variously changed. In the example shown in FIG. 1, the number of symbols is reduced in the fourth and fifth rows from the top, and the direction of change is made different as indicated by the arrow. Similarly, the form (shape, color, size, background, etc.) of the symbol may be changed while increasing or decreasing the number of symbols. By changing the direction of change and the form of the symbol in this way, the player 2 looking at the display unit 8 can be made more tired.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. [Embodiment 1] Embodiment 1 is an example in which the present invention is applied to a pachinko machine as a gaming machine and switches between a first symbol variation and a second symbol variation before and after a reach. The first embodiment will be described with reference to FIGS.

First, the game board 1 of the pachinko machine 10 shown in FIG.
2, a gate 32 having a gate sensor 58 for detecting a passing pachinko ball, passing ports 24 and 62 through which a pachinko ball can pass, a starting port 30 having a starting port sensor 60 for detecting a winning pachinko ball, a solenoid. A large winning opening 34 having an opening / closing lid 74 which can be opened and closed by 54, a composite device 14 having a combination of the special symbol display 22 and the holding ball lamps 20 and 28 as described later, a general winning opening and a windmill, Obstacle nails etc. are arranged appropriately.

An operation button 48 (operation unit) for giving an instruction to the pachinko machine 10 is provided below the game board 12.
An ashtray 46 for holding cigarette butts, a lower plate 44 for temporarily storing pachinko balls including award balls, a handle 40 having a touch sensor 42 for detecting whether or not the player 2 is touching, a receiver for receiving award balls The speaker 50 is provided inside the upper plate 38 and emits sound (including sound, sound effect, music, etc.).
And so on. Further, a frame opening sensor 36 for detecting the opening of the glass frame 18 (metal frame) and the lamps 16 (light emitters) arranged at appropriate positions in accordance with the game content of the pachinko machine 10 and the like are provided. Further, above the upper plate 38, a ball lending switch 64 for instructing ball lending, a return switch 72 for instructing return of the prepaid card, and the like are provided.

By the way, the passing port 24 provided in the game board 12 is provided with a normal symbol display 26 capable of displaying a normal symbol. Normally, the symbol display 26 has one or more luminous bodies (for example, LEDs emitting green or red light), and starts to fluctuate when the pachinko ball passes through the gate 32, for a required period (for example, 10 or more).
(Seconds). For example, the symbol is usually displayed in a specific display mode (specifically, a specific L
When the ED is turned on in red, the lid of the lower starting port 68 is opened for a certain period (specifically, 4 seconds) by a solenoid or the like. In addition to the opening / closing lid 74 described above, if the pachinko ball wins within the opening period of the special winning opening (for example, 20 seconds), the special winning opening 34 is a special area in which the jackpot game state can be continued within a required number of times (for example, 16 times). V zone 5
6 and a normal area where payout balls are only paid out.
In order to detect a pachinko ball, a V zone sensor 52 is provided in the V zone 56, and a winning sensor 70 is provided in the normal area. A lower starting port 68 (function equivalent to the starting port 30) provided with a starting port sensor 66 for detecting a winning pachinko ball is provided below the big winning port 34. Starting port 30
When the pachinko ball wins, the lower starting port 68 pays out the prize ball in the same manner as the normal winning port.

A composite device 14 shown in FIG. 3A, which is a partially enlarged view of FIG. 2, is a special symbol display 22 capable of displaying a special symbol, and a pachinko ball that has passed through a gate 32 during the change of a normal symbol. The holding ball lamp 20 for displaying the number of pachinko balls (that is, the holding balls) winning in the starting port 30 and the lower starting port 68 during the change of the special symbol, and the holding ball lamp 28 for displaying a normal winning port. It has a winning opening 76 (so-called sky hole) and the like. Here, the number of pachinko balls that can be recognized by the display of the reserved ball lamp 28 is called “the number of reserved balls”. Each of the retaining ball lamps 20 and 28 is composed of one or more light emitters (for example, four LEDs).

For example, a liquid crystal display is used as the special symbol display 22 to display a special symbol (lottery display symbol) or a background symbol (decorative symbol) composed of characters, symbols, symbols, figures, images and the like. I do. The special symbol display 22 is configured to display one or more display units 8 simultaneously or non-simultaneously, and when the displayed symbol becomes a big hit symbol (predetermined display mode; for example, a special symbol combination “777”). It is configured to give a privilege that is a gaming condition advantageous to the player 2 such as a jackpot game or the like. As for the display (fluctuation or stop) of the symbols, the symbols arranged in a line as shown in the example shown in FIG. 3B are sequentially arranged in a predetermined direction (for example, the vertical direction or the horizontal direction of the special symbol display 22). First symbol fluctuation to be displayed and FIG. 3
An aggregate 78 composed of two or more symbols as shown in FIG.
Figure 3 shows the number of symbols displayed almost simultaneously after
(C), the aggregates 86 and 8 shown in FIGS. 3 (D) and 3 (E).
It is configured to be able to switch between the second symbol variation that is changed as shown in 8, 89. For the sake of simplicity, an example in which substantially the entire screen of the special symbol display 22 is used as the display unit 8 will be described below. The symbols and symbol groups displayed on the special symbol display 22 are composed of ten special symbols (single symbols) composed of a combination of the same numbers as shown in FIG. 3B, and include even symbols and odd symbols. Left pattern group 8 divided into different colors
0, middle symbol group 82, right symbol group 84 and the like are used.

Next, a main control board 100 for realizing a pachinko game by the pachinko machine 10 and a display command (for example, a signal including a design or a display pattern at the time of a fluctuation stop) sent from the main control board 100 are received. The display control board 200 that displays symbols on the special symbol display 22 will be described with reference to FIG. Both the main control board 100 and the display control board 200 are provided on the back side of the pachinko machine 10, for example.

Main control board 1 corresponding to game control section 4
Reference numeral 00 mainly includes a CPU (processor) 110. The main control board 100 stores a ROM 112 for storing a game control program, required data (for example, a jackpot value, etc.), data (for example, a lighting pattern, a sound pattern, a vibration pattern, an operation pattern, and the like) necessary for realizing an effect. , Which stores data such as various random numbers and signals
AM 114, an input processing circuit 102 that receives signals sent from various input devices and converts it into a data format that can be processed in the main control board 100, receives various operation data sent from the CPU 110, and outputs various types of output devices (for example, solenoids). 5
4) and an output processing circuit 104 for operating the CPU 110
A display control circuit 106 for controlling display (including lighting) of the illuminant in response to display data sent from the communication control circuit 116 for transmitting necessary signals to the display control board 200, the frame control board 300, and the like. . All of these components couple to one another on bus 118.

The CPU 110 executes the game control program stored in the ROM 112 to realize the game by the pachinko machine 10, and the game control program includes a program for realizing a procedure such as a start-up opening process described later. An EPROM is used for the ROM 112 and a RAM 114
Uses SRAM, but other types of memory (EEPRO
M, DRAM, flash memory, etc.). For example, the input devices that the input processing circuit 102 receives the detection signal include start-up opening sensors 60 and 66, a gate sensor 58, a winning sensor (such as a V zone sensor 52), an operation button 48, and other sensors (a frame opening sensor 36). , Touch sensor 42, etc.). The output device to which the output processing circuit 104 outputs a signal corresponds to, for example, the solenoid 54 or the like. Examples of the illuminant whose display is controlled by the display control circuit 106 include the lamps 16, the holding ball lamps 20 and 28, the ordinary symbol display 26, and the like. Communication control circuit 116
Can transmit necessary data to a hall computer or the like as necessary.

Next, a display control board 200 corresponding to the display control section 6 is constituted mainly by the CPU 210, and includes a display control program and display data (for example, display information corresponding to a display command, and a change or stop of a symbol. ROM 202 for storing display patterns and the like, a RAM 204 for storing data such as display commands and display information and input / output signals, and a communication control circuit 206 for receiving data sent from the main control board 100 and sending it to the CPU 210 or the RAM 204 or the like. A character generator 212 which stores (records) a required symbol in advance and generates it upon receiving a display command or the like, receives a display information sent from the CPU 210, and displays a processed symbol on the special symbol display 22 (VDP (Video)). Display Processor)
214 etc. All of these components couple to each other on bus 208. The ROM 202 and the character generator 212 correspond to the symbol group recording means 6c in that one or more symbol groups can be stored (recorded).

The CPU 210 executes the display control program stored in the ROM 202 and displays symbols on the special symbol display 22. An EPROM is used for the ROM 202, and RA
Although a DRAM is used for M204, other types of memories described above may be used. The communication control circuit 206 can transmit necessary data to a hall computer or the like as needed. The design data generated by the character generator 212 includes, for example, characters (alphanumeric characters, kanji, etc.), designs (lottery display designs, decoration designs, etc.), still images, moving images (animations, etc.), videos, and the like. The VDP 214 having a VRAM, a palette RAM, and the like receives the display information, reads the design data generated by the character generator 212, performs image editing such as color designation and sprite processing, and develops the design data in the VRAM or the palette RAM. Finally, a video signal, a synchronization signal, and the like are output to the special symbol display 22. By the sprite function realized by executing the sprite process, two or more symbol variations can be switched, and a display or the like based on the switched symbol variation can be easily realized.

The frame control board (prize ball control board) 300 for controlling the operation of various devices in response to the command signal sent from the main control board 100 and other boards are not related to the gist of the present invention. Therefore, illustration and description of a specific configuration are omitted. Examples of the various devices include a handle 4
A fire device that fires a pachinko ball when 0 is operated, a payout device that pays out a pachinko ball for ball lending or prize balls, and the like are applicable.

The procedure performed by the main control board 100 to realize the present invention in the pachinko machine 10 configured as described above will be described with reference to FIGS. Here, FIG. 5 shows a procedure of a start-up port process for realizing a winning determination of a pachinko ball with respect to the start-up port 30, and FIG.
The procedure of the fluctuation stop processing for realizing the display of the symbol by switching between the symbol fluctuation and the second symbol fluctuation is shown by a flowchart. The starting port processing is performed by the main control board 100 shown in FIG.
The game control program stored in the ROM 112 of C is
This is realized by the PU 110 executing at an appropriate timing, and the fluctuation stop processing is performed by the ROM 202 of the display control board 200.
Is realized by the CPU 210 executing the display control program stored in the. Note that the following restrictions are imposed to simplify the description. First, since the starting port 30 and the lower starting port 68 function equally, the starting port 3
0 will be described as an example. Secondly, in the actual pachinko machine, when a pachinko ball wins in the starting port 30 during the change, the next change is temporarily held up to a predetermined number (for example, 4) and the holding ball lamp 28 is turned on. After the current fluctuation, the fluctuation is performed continuously within the range of the number of reserved balls. Therefore, it is assumed that the number of reserved balls is 0 (all the reserved ball lamps 28 are turned off) and that one pachinko ball has won the starting port 30.

In the start-up process corresponding to a procedure that embodies a part of the game control unit 4 in FIG.
It is determined whether or not the pachinko ball has won a prize [Step S
10]. For example, if there is a detection signal from the starting port sensor 60 shown in FIGS. 2 and 4, it is determined that a prize has been won (YES), and if there is no such detection signal, it is determined that no prize has been won (NO). If a pachinko ball wins in the opening 30 (YE
S), it is determined whether or not to change the symbol [Step S
12]. For example, the determination is made based on whether or not the current game state is changing or in a big hit game. If the symbol fluctuates (NO), various random numbers are read and RA
The display pattern and the like are stored in M114 and include the type of symbol variation [Step S14]. For example, one or more display patterns are determined from two or more display patterns with reference to a predetermined table stored in the ROM 112 or the like based on the read symbol display random numbers RC, or the first symbol is used as a symbol variation type. Determine the variation. The type of the symbol change may not be determined based on the random number or the like, but may be set to be performed at a specific symbol change (for example, the first symbol change) at least at the start of the change.

Here, as the various random numbers, for example, a jackpot determination random number RA for determining whether or not a jackpot, or a jackpot symbol displayed on the special symbol indicator 22 when the jackpot is determined by the jackpot determination random number RA. A hit symbol random number RB for specifying a (predetermined symbol display mode), a symbol display random number RC for specifying a display pattern from the start of a lost symbol or a change to the stop, and the like are applicable. The “display pattern” means the order of displaying on the special symbol display 22 including the variation pattern and the reach pattern for realizing the symbol variation, for example, the ROM of FIG.
Two or more are stored in advance in recording means such as 202 and RAM 204. The configuration contents, the number of patterns, and the like of the display patterns stored in the recording means may be invariable, and may be increased or decreased or the contents may be changed at an arbitrary timing. In the case of realizing a symbol change with two or more display units 8, the change speed, the change direction, the stop timing, the order, and the like may be determined separately. The fluctuation of the symbol includes a normal fluctuation imitating the rotation of the reel, a forward / reverse fluctuation in a mode of swinging an arbitrary distance in an arbitrary direction around a predetermined position on the screen, a synchronous fluctuation in which two or more fluctuations are synchronized, There is an all-symbol synchronous variation that synchronizes all the symbol variations. Which change is performed is arbitrary, and when the display pattern is determined according to the game state or the like, the player 2 can have a sense of expectation.

On the basis of the various random numbers stored in step S14, the special symbol display 22 executes a variation stop process for realizing the symbol variation from the start to the variation including the reach display which can be performed on the way until the variation is stopped. [Step S1
6]. This fluctuation stop processing is a procedure that embodies a part of the display control unit 6, and will be described with reference to FIG. Step S44 corresponds to a process in which a part of the variation switching means 6a is embodied.

The fluctuation stop processing shown in FIG. 6 is realized based on a required display command sent from the main control board 100 to the display control board 200 one or more times. First, a display command is sent to the display control board 200 with the display pattern and the like determined in step S14 of FIG. 5, and for example, the first symbol change is started according to the display pattern included in the display command [step S30].

Only after a short time after the start of the fluctuation, only when a part of the fluctuation of the symbols is stopped and the reach is reached (YES in step S40), one or both of the symbols to be increased or decreased and the symbols to be left or the symbols to be left are set. Determine the number etc. [Step S4
2] The symbol variation is switched and the symbol variation is continued according to the determination in step S42 [step S44].
The determination in step S42 is performed, for example, in step S14 in FIG.
This is performed based on the jackpot symbol specified based on the random number RB for the jackpot symbol stored in the above, the off symbol specified based on the random number RC for symbol display, the lottery result of the random number, and the like. The number of symbols to be changed by increasing / decreasing is 10 → 3 → 2
Pieces, 10 pieces → 5 pieces → 3 pieces → 1 piece, 10 pieces → 3 pieces → 5 pieces →
Although it is optional such as one, it is desirable that the number of symbols is finally one in order to finally determine the symbol as a lottery result due to the symbol variation. In the case where the symbols are increased on the way, the symbols once reduced by erasing or the like may be restored. Switching of the symbol variation in step S44 is performed, for example, in the first
Not only the change from the symbol change to the second symbol change,
Switching from the symbol variation to the first symbol variation may be performed. The switching of the symbol variation is optional once or more.
The aggregate first displayed in the second symbol variation is composed of two or more symbols, and may be all symbols constituting one symbol group stored in the ROM 202 or the like. It should be noted that if the number of symbols constituting the aggregate to be displayed first is determined by lottery such as random numbers, the display will be changed at random, so that an interesting display will be obtained. In addition, when the symbols constituting the group to be displayed first are associated with a privilege or the like, the player 2 can have a sense of expectation.

Then, after changing the symbol variation in the above-described step S44 or performing the symbol variation at the start of the variation without reaching the reach (NO in step S40), the symbol variation is stopped and the lottery is terminated [step S46]. ], The fluctuation stop processing ends. By executing step S46, the special symbol display 22 displays a special symbol (a big hit symbol, a missing symbol, or the like) as a lottery result. The player 2 who sees the special symbol displayed in this way can know whether the current lottery is a big hit or a miss.

Returning to FIG. 5, when the fluctuation stop processing of step S16 is completed, it is determined whether or not a big hit has occurred (step S16).
18]. In the case of the pachinko machine 10 which is not easily affected by extraneous noise and the like and has high reliability, it is determined whether or not it is a big hit based on the big hit determination random number RA described above. If it is determined that there is a big hit (YES), a big hit process is executed to give the player 2 an opportunity to obtain a prize ball [step S20]. In the jackpot process, for example, the opening / closing lid 74 of the special winning opening 34 is opened for a predetermined period (specifically, 30 seconds), and a winning ball is paid out according to the number of pachinko balls that have won the special winning opening 34 or the like. A big hit game like this is realized. Since the specific procedure of the jackpot process is well known, its description and illustration are omitted. On the other hand, if the pachinko ball has not won the starting port 30 in the determination in step S10 (NO), if the symbol does not change in the determination in step S12 (YES), or step S
If the determination in step 18 is negative (NO), the start port process is terminated in any case.

If necessary, the special symbol display 22 may be stopped to determine whether or not the special symbol displayed on the special symbol display 22 matches the jackpot symbol to determine whether or not the jackpot is a big hit. Instead, the jackpot process of step S20 may be executed. Before and after the jackpot processing,
If necessary, a probability variation process for changing the degree of expectation (probability) of winning a jackpot symbol in the subsequent lottery may be executed. In this way, it is possible to improve the expectation of the player 2 who expects a big hit in the next and subsequent times.

Next, an example of executing each processing shown in FIGS. 5 and 6 and performing a lottery on the special symbol display 22 will be described with reference to FIGS. The display examples shown in FIG. 7 to FIG. 10 are examples of a case of a jackpot, and illustrations and descriptions of other cases of a jackpot and cases of a large number of misses are omitted. In addition, stop of pattern fluctuation,
This shows a state in which the display is finally stopped including the display pattern for performing the re-variation.

First, when the pachinko ball wins in the starting port 30, the special symbol display 22 sequentially displays the symbol groups on the special symbol display 22 as shown in FIG.
0, medium symbol fluctuation 92, and right symbol fluctuation 94 are started {Step S30 in FIG. 6}. The left symbol change 90, the middle symbol change 92, and the right symbol change 94 are symbol changes using the left symbol group 80, the middle symbol group 82, and the right symbol group 84 shown in the example of FIG. 3B, respectively. . According to this arrangement order, the left symbol variation 90 appears and disappears on the special symbol display 22 in the order of the numeric symbols “7, 6, 5,...”, And the middle symbol variation 92 shows the numeric symbols “3, 2, 1, … ”Appears and disappears on the special symbol display 22 in the order, and the numeric symbol“ 5, 6,
7,... Appear in the special symbol display 22 and disappear. In this example, both symbols fluctuate toward the lower side of the screen (the direction of arrow D2). However, the direction of variation of each symbol variation may be arbitrary. 3 (A), 3 (C), 3
(D) and FIG. 3 (E) show examples of the aggregates 78, 86, 88 and 89 each composed of two or more symbols using any of the symbol groups shown in FIG. 3 (B).

Shortly after the start of the fluctuation, the left symbol fluctuation 90 and the right symbol fluctuation 94 are stopped, and the left symbol 80a of the left symbol group 80 and the right symbol 84a of the right symbol group 84 are stopped as shown in FIG. May be both “7”. In this case, the symbol combination “7x7” (x means that the symbol is changing, the same applies hereinafter) corresponds to one of the reach symbols, so {YES in step S40 of FIG. 6}, and the first symbol variation was followed. The middle symbol variation 92 is switched to the second symbol variation and continues to vary {step S44 in FIG. 6}. Hereinafter, an example of the second symbol variation in which the number of symbols to be displayed almost simultaneously after the two or more symbols constituting the symbol group are displayed will be described.

Before displaying two or more symbols constituting the symbol group, first, a left symbol 80a and a right symbol 84a as reach symbols are fixed on the screen of the special symbol display 22 as shown in FIG. After moving in a direction (arrows D4, D6, etc.) or in an indeterminate direction, these symbols are moved to a position where they cannot be visually recognized and temporarily erased. Along with this erasure, a symbol 96 imitating a flat plate is displayed on the special symbol display 22. FIG.
In the example of (C), the left symbol 80a and the right symbol 84 in the middle of movement are shown.
a is almost half erased.

When the player 2 lowers the fluctuation speed of the middle symbol fluctuation 92 until the player can visually follow the middle symbol 82a of the middle symbol group 82, as shown in FIG. Is moved downward (in the direction of arrow D8) to a position on the upper surface of the. Then, the symbol 96 is moved to the position indicated by the two-dot chain line, and the symbol is changed by a moving image of just throwing the middle symbol 82a upward. In this moving image display, as shown in FIG. 8B, the middle symbol 82a is moved upward (arrow D10).
Direction), and finally the middle symbol 82a is temporarily erased from the special symbol display 22 as in the example shown in FIG.

After the middle symbol 82a is temporarily deleted, FIG.
As shown in (A), the aggregate 78 including all the symbols constituting the middle symbol group 82 is moved downward (in the direction of the arrow D8) to a position on the upper surface of the symbol 96. The assembly 78 shown in the example of FIG. 9A is divided into a plurality of stages and displayed so as to partially overlap each other, and is a three-dimensional display with a depth of the symbol “7” at the top. By displaying the aggregate 78 in this manner, the player 2 can recognize at a glance what kind of symbol is formed. In addition, in accordance with the display of the aggregate 78, the above-described pattern 96 also gives a three-dimensional effect using the perspective method. Similarly to the above-described moving image in which the middle symbol 82a is thrown upward, as shown in FIG. 9 (B), the symbol is changed by the moving image in which the aggregate 78 is thrown upward. Temporarily delete {First display mode}. In this erasing process, the aggregate 7
8 may be moved upward (in the direction of arrow D10), or may be moved in a fixed direction (such as arrows D12 and D14) or in an indeterminate direction so that some of the symbols constituting the aggregate 78 may be separated. The symbols may be moved as an aggregate and moved so as to separate other symbols. In the example of FIG. 9B, the symbols “3” and “0” are moved separately, and the symbols “3” and “0” are about to be erased from the special symbol display 22.

Thereafter, when the assembly is again moved to a position where it is placed on the upper surface of the symbol 96, the symbol determined in step S42 in FIG.
As shown in (B), an aggregate 86 composed of a smaller number of symbols than the aggregate 78 is formed. In the example of FIG. 9B, a symbol "7" that can constitute a big hit symbol is included in the front row.
When a symbol that can constitute a big hit symbol is displayed in the front row in this manner, the symbol is conspicuous, so that the player 2 can have a sense of expectation of a privilege. Further, in order to reduce the number of symbols constituting the aggregate 86 according to the determination in the step S42, as shown in FIG.
6 is changed by a moving image that shakes 6 in a fixed direction (the direction of arrow D16) or in an indeterminate direction. In this shaking process, the entirety of the aggregate 86 may be temporarily erased from the special symbol display 22 or a part of the symbols constituting the aggregate 86 may be separated and erased.

When the aggregate is again moved to a position where the aggregate is placed on the upper surface of the symbol 96, the symbol determined in step S42 is reduced (thinned out), and the symbol is smaller than the aggregate 86 as shown in FIG. An aggregate 88 composed of a small number of symbols is formed. In the example of FIG. 10A, the symbol “7” that can constitute the big hit symbol is deleted and disappears. In this case, as in the case of the above-described aggregate 86, the symbols are changed by moving images that shake the aggregate 88 together with the symbols 96 in a fixed direction (the direction of the arrow D18) or in an indeterminate direction. Thereafter, although the number of symbols determined in step S42 has not changed, as shown in the example of FIG. 10B, symbol "6" has disappeared and symbol "7" capable of forming a big hit symbol has been restored. Is displayed. The erasing timing of the symbol "6" and the resurrection timing of the symbol "7" may be substantially simultaneous, or may be before or after. When the lost symbol “7” is restored, the player 2 can further increase the expectation of the privilege. Note that two or more symbols may be restored. Then, in the example of FIG.
Is changed by a moving image in which the is shaken in a fixed direction (the direction of arrow D20) or in an indeterminate direction. In this way, the number of elements is gradually reduced from the aggregates 78, 86, and 88 composed of two or more symbols, and finally, one symbol symbol 82a is displayed as shown in FIG. Step S46 #. At this time, if necessary, a big hit symbol “77” including a left symbol 80a, a middle symbol 82a, and a right symbol 84a.
7 or an informational symbol consisting of the characters "big hit" may be displayed.

In the above example, the aggregates 78, 86,
Number of symbols (number of elements) displayed almost simultaneously by 88
Is reduced, but the number of symbols constituting the aggregate may be increased. In this case, in order to finalize the symbol, for example, after increasing, reduce it to one symbol,
It is necessary to display the pattern to be determined by making the form (shape, color, size, background, etc.) different from that of another pattern. Similarly, the number of aggregates displayed on the special symbol display device 22 may be two or more. In this way, the aggregate itself and the number of symbols constituting the aggregate change as compared to the case where the number is simply reduced, so that the player 2 looking at the special symbol display 22 can be interested. Further, the design 96 is not limited to the one imitating a flat plate, but may be an imitation of another object. For example, in the case of a symbol 96 imitating a monkey, the character symbol has the symbol 96 and the aggregates 78, 86, 8
If a moving image or a still image is displayed such that the symbols are thinned out by the motion of flipping up and returning 8, the display becomes realistic and interesting.

Furthermore, while the variation speed is set to be low only in the middle symbol variation 92 of the middle symbol group 82, the symbol is displayed so that the player 2 can visually recognize the symbol, but may be displayed in another speed mode. That is, one or both of the first symbol variation and the second symbol variation may be performed at a high variation speed so that the player 2 cannot make the symbols visually recognizable. When the symbol is visually recognized, switching of the symbol change is easy to understand. And as a mode to make the pattern invisible,
As described above, the present invention is not limited to the mode in which the aggregate or the symbol is erased from the area of the special symbol display 22 so as to go out of the area to make it invisible, and the identification is performed while stopping in the area of the special symbol display 22. (Hidden behind a symbol (special symbol, background symbol, etc.)), or made invisible by rendering the symbol transparent, or a specific portion (in the area of the special symbol indicator 22) For example, a mode in which the image is erased from the central portion or the peripheral portion to make it invisible is applicable. The manner in which the view is made invisible is arbitrary, but it is possible to give the player 2 a sense of expectation in connection with reach, a jackpot probability, or the like.

According to the first embodiment, the following effects can be obtained. (1) A ROM 202 and the like (symbol group recording means 6c) capable of storing a left symbol group 80, a middle symbol group 82, and a right symbol group 84 each including two or more symbols are provided. Left symbol group 80, middle symbol group 82, right symbol group 84 stored in the ROM 202 or the like.
The first symbol variation in which symbols constituting the symbol group are sequentially displayed using {step S30 in FIG. 6; see FIG. 7A},
After all the symbols (two or more symbols) constituting the middle symbol group 82 are displayed, it is possible to switch between a second symbol variation in which the number of symbols to be displayed is changed almost simultaneously. {Variation switching means 6a; Step S44, FIGS. 7C to 10
See (B)｝. As described above, in addition to the first symbol change performed by the conventional gaming machine, the second symbol change is newly realized, so that the pleasure of the player 2 watching the special symbol display 22 can be maintained. (2) The first symbol variation and the second symbol variation are switched after the symbol displayed on the special symbol display 22 becomes a reach symbol (part of a predetermined display mode) {Step S4 in FIG.
0, S44; see FIGS. 7 (B) to 10 (B)}. In this way, the player 2 that recognizes the switching between the first symbol change and the second symbol change can know that the reach symbol has been displayed (that is, the reach has been reached).

(3) Of the left symbol group 80, the middle symbol group 82, and the right symbol group 84 stored in the ROM 202 or the like, the middle symbol group 8
After displaying all the symbols (two or more symbols) constituting No. 2, a second symbol change is performed to change the number of symbols to be displayed almost simultaneously. {Symbol change means 6b; step S in FIG.
44, see FIGS. 7 (C) to 10 (B)}. Such a non-conventional display is realized, and the special symbol display 22
The pleasure of the player 2 who sees the (display unit 8) can be maintained. The same effect can be obtained even when this is performed for the left symbol group 80 and the right symbol group 84. (4) In the second symbol variation, symbols to be reduced are determined by lottery such as random numbers (step S42 in FIG. 6; see FIGS. 9 and 10). Therefore, it is impossible to predict which symbol becomes invisible and disappears from the special symbol display 22, and the player 2 looks at the special symbol display 22 with interest. When the symbols are increased and displayed almost simultaneously in the second symbol change, it is not possible to predict which symbols will be visible and displayed on the special symbol display 22. Therefore, also in this case, the player 2 looks at the special symbol display 22 with interest. (5) When changing the number of symbols to be displayed almost simultaneously by displaying the aggregates 78, 86, and 88, the symbols are displayed invisibly so as to come out of the area of the special symbol display 22 and out of the area. (Step S42 in FIG. 6; see FIG. 9B). When the symbols come out of the screen (area) of the special symbol display 22 in this way, it can be clearly understood that the symbols constituting the aggregate decrease. The first display mode is opposite to the first display mode, that is, the special symbol display 22.
May be performed in the second display mode in which the symbol is displayed so as to be visible from outside the area, or both the first display mode and the second display mode may be performed alternately. In this way, it can be clearly understood that the symbols constituting the aggregate increase or decrease.

(6) Since the reach is achieved with the reach symbol “7 × 7”, the aggregates 78, 86, and 78 are displayed while continuing to display “7” of the middle symbol 82a capable of forming the big hit symbol “777”.
The number (number of elements) of the symbols constituting 88 has been reduced {Fig.
Step S42; see FIGS. 9 and 10}. In this way, even if the number of the symbols constituting the aggregate decreases, the symbols constituting the big hit symbol remain displayed. Therefore, the player 2 looks at the special symbol display 22 with a sense of expectation. (7) The number of symbols is reduced and the direction of variation is changed {Step S42 in FIG. 6; FIGS. 9B to 10A)
See｝. When the change direction is also changed in this way, the display becomes more interesting than when the change direction is not changed, and the player 2 who sees the special symbol display 22 is not bored. The same applies to the case where the direction of change is changed by increasing the number of symbols, or the case where the number of symbols is increased / decreased and the form (shape, color, size, background, etc.) of the symbol is changed. The display becomes more interesting than the case where it is not made to be displayed, and the player 2 who sees the special symbol display 22 is not bored. Examples of changing the design of some or all of the symbols as elements constituting the left symbol group 80, the middle symbol group 82, and the right symbol group 84 include changing the shape from a numeric symbol to a graphic symbol, or changing the shape of an even symbol. Change the color that is different from the odd number to the same color, perform the second design change with a design larger than the first design change, change the background used for the first design change and the second design change, etc. I do.

[Second Embodiment] In a second embodiment, the present invention is applied to a pachinko machine in the same manner as in the first embodiment, and the first symbol variation and the second symbol variation are switched before and after a specific condition is satisfied. It is. The second embodiment will be described with reference to FIGS. The configuration and the like of the pachinko machine 10 are the same as those of the first embodiment. In the second embodiment, differences from the first embodiment will be described in order to simplify the illustration and the description. Therefore, the same components as those used in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The second embodiment is different from the first embodiment in that, in the fluctuation stop processing shown in FIG. 6, steps S32, S34, S36 and S38 are replaced with steps S40, S42 and S44 for switching the pattern fluctuation before and after the reach. The point is to execute. That is, when the display pattern determined in step S14 of FIG. 5 is a specific display pattern (YES in step S32), the first symbol change is started in step S30, and may be a predetermined period (can be constant or indefinite). After waiting for 10 seconds) (step S34), it is determined that the first condition is satisfied, and the process proceeds to step S4.
The symbols to be increased / decreased, the symbols to be retained, the number of symbols, and the like are determined in the same manner as in Step 2 (Step S36), and the symbol variation is switched and continued as in Step S44 [Step S38].

An example in which each processing shown in FIGS. 5 and 6 is executed and a lottery is performed on the special symbol display 22 {FIGS. 9 (A) to 10).
(B) is the same as in the first embodiment, but differs in the following points. That is, after the first symbol change is started on the special symbol display 22 and a predetermined period has elapsed from the start of the specific display pattern and the change, {step S32 in FIG.
YES at S34, display of one or more symbol variations among left symbol variation 90, middle symbol variation 92, and right symbol variation 94, regardless of the reach, as shown in FIGS. 9 (A) to 10 (B). I do.

According to the second embodiment, the following effects can be obtained. (1) After the first condition is satisfied {Step S in FIG. 6
32 and S34 are both YES}, the first symbol variation in which symbols constituting the symbol group are sequentially displayed using the left symbol group 80, the middle symbol group 82, and the right symbol group 84 {Step S30 in FIG. 6;
7A, all the symbols (two or more symbols) constituting the middle symbol group 82 are displayed, and then switched to the second symbol variation that changes the number of symbols to be displayed almost simultaneously. Step S44; see FIGS. 9 (A) to 10 (B)}. As described above, the first game machine, which is also used in the conventional game machine,
Since the second symbol change is newly realized in addition to the symbol change, the pleasure of the player 2 who sees the special symbol display 22 can be maintained. (2) After the first condition is satisfied {Step S in FIG. 6
YES at both 32 and S34, a symbol change that changes the number of symbols to be displayed almost simultaneously after displaying all the symbols (two or more symbols) constituting the middle symbol group 82 {the symbol variation means 6b; 6, Step S44, FIG.
(C) to FIG. 10 (B)}. Only when the first condition is satisfied, an unconventional display can be realized, and the pleasure of the player 2 looking at the special symbol display 22 (display unit 8) can be maintained. This means that the left symbol group 80 and the right symbol group 84
The same effect can be obtained when the above is performed.

(3) Since other requirements and configurations are the same as those of the first embodiment, the same effects as those of the first embodiment can be obtained. (4) In the second embodiment, steps S40 and S4 in FIG.
Steps S32, S34, S36,
After executing S38, steps S40, S42,
Steps S32, S34, S3 without changing S44
6, S38 may be executed. Steps S30 and S30
38, the symbol change performed in S44 is not limited to the example of FIG.
Any of a symbol variation, a second symbol variation, and another symbol variation may be used. Even in this case, since the second symbol change can be newly realized, the pleasure of the player 2 looking at the special symbol display 22 can be maintained.

[Other Embodiments] The above-described pachinko machine 1
In 0 (gaming machine), the structure, shape, size, arrangement, operating conditions, and the like of the other parts are not limited to the above embodiment. For example, each of the following embodiments to which the above embodiment is applied may be implemented. (1) In the above embodiments, the present invention is applied to a pachinko machine. Instead of this embodiment, the present invention is similarly applied to a game machine other than a pachinko machine (for example, a slot machine, an arrangement ball machine, a sparrow ball game machine, a video game machine, etc.) having a display unit 8. Can be applied. Even in the other gaming machines, the first symbol variation and the second symbol variation can be switched by the variation switching means, so that the second symbol variation is performed in addition to the first symbol variation performed in the conventional gaming machine. Can be performed. Therefore, the pleasure of the player looking at the display unit can be maintained.

(2) In each of the above embodiments, the special symbol display 22 is applied as the display section 8 {FIGS. 3, 7 to 1}
See 0 etc. 等. Instead of (or in addition to) this form,
A display or display device capable of displaying a symbol other than the special symbol display 22 may be applied. The number of the display devices and display devices is one or more, and all or a part of the display area may be used as the display unit 8. In each of the above embodiments, the special symbol display 22 is provided with one display unit 8 (see FIGS. 3, 7 to 10, and the like). Instead of this form, two or more display units 8
May be provided. Similarly, one or more arbitrary number of display devices or display devices may be provided with two or more display units 8. The present invention can be applied to all or some of these two or more display units 8. Further, although a liquid crystal display is used as the special symbol display 22, any display capable of displaying symbols, such as a CRT, an LED display, and a plasma display, may be used. Further, although the normal symbol display 26 and the special symbol display 22 are used separately, the same display may be used for both. In any case, the second symbol change can be newly realized,
The pleasure of the player 2 looking at the display unit 8 can be maintained.

(3) In each of the above embodiments, a jackpot symbol (or a jackpot determination random number RA or the like) is applied as a predetermined display mode, and a reach symbol (or symbol display random number RC) is used as a part of the predetermined display mode. (See step S34 in FIG. 6, step S48 in FIG. 7, FIG. 8, etc.). Instead of this form, a symbol other than the jackpot symbol and the reach symbol may be applied. For example, a single symbol, a combination of different symbols such as “6” for the left symbol 80a and “7” for the right symbol 84a, and the like are applicable. Even in this case, the player 2 can maintain the pleasure of seeing the special symbol display 22.

(4) In the above embodiments, a jackpot game realized by executing a jackpot process is applied as a privilege which is a gaming condition advantageous to the player 2 (see step S20 in FIG. 5). . Instead of (or in addition to) this mode, other benefits that are advantageous game conditions for the player 2 may be applied. For example, shortening the symbol fluctuation period (so-called time saving), changing the number of time savings, changing the probability of winning (so-called probability fluctuation), changing the number of payouts with winning, changing the lid, blades, movable pieces, etc. provided for the winning device and gate Various modes such as opening and closing, or a mode in which two or more modes including a jackpot game are arbitrarily combined correspond. in this case,
The player 2 expects other benefits while the special symbol display 22
And enjoy pachinko games.

(5) In addition, the following embodiments may be realized. It is configured to perform the second symbol variation for the variation related to the decorative symbol, or to switch between the first symbol variation and the second symbol variation. The decorative symbol means an arbitrary symbol other than a symbol for a lottery display (a special symbol, a normal symbol, or the like) used for the lottery, and is displayed in the foreground or the background of the symbol for a random selection. The pattern variation may be switched before and after reaching or before and after satisfying the first condition, but whether or not the second condition such as whether or not the probability of reaching or the jackpot exceeds a predetermined value is satisfied. May be used to switch the symbol variation. In this way, after the second condition is satisfied, a new symbol change is performed for the decorative symbol, so that the pleasure of the player 2 looking at the special symbol display 22 (display unit 8) can be maintained. . When the timing to switch the symbol variation is reached, the symbol variation may be switched and another effect may be performed. The other effects include, for example, different sounds (sounds, sound effects, and the like) output from the speaker 50, different vibrations of the handle 40 touched by the player 2 and the chair on which the player 2 is seated, and a movable body (character). Body, movable piece, movable member, etc.)
For example, a configuration provided with an effect means for effecting such as differentiating the operation. In this way, the player 2 who has heard the sound or recognized that a specific object vibrates, etc., can use the special symbol display 2.
Switching of symbol fluctuation can be understood without looking at 2.

The timing of switching the symbol change is arbitrary after the start of the change, but the symbol change may be switched before and after satisfying a condition related to the probability of the privilege (for example, a probability of a jackpot of 50% or more). Good. In this way, the player 2 that recognizes the switching of the symbol variation improves the expectation of expecting the privilege. When the symbols as an aggregate are displayed on the special symbol display 22, a symbol that always constitutes the big hit symbol (hereinafter, referred to as a "big hit component symbol") may be arranged in the front row. ) See｝. In this way, the big hit configuration pattern becomes more conspicuous, and the sense of expectation of the player 2 is easily raised. In addition, the arrangement of the big hit configuration symbols may be changed front and rear, left and right, and displayed. In this way, the player 2 tries to determine whether or not the big hit symbol is displayed, so that the degree of attention of the special symbol display 22 is increased. Further, two or more symbols constituting the aggregate may be arranged and displayed in a line, or may be arranged and displayed in a matrix. By doing so, the visibility of the symbols including the jackpot configuration symbols is enhanced, so that the player 2 can easily understand the presence or absence of the jackpot configuration symbols.

[0057]

According to the present invention, it is possible to maintain the pleasure of the player watching the display section.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing an outline of the present invention.

FIG. 2 is a front view showing the appearance of the pachinko machine.

FIG. 3 is a diagram showing the appearance of the multifunction peripheral and the configuration of a symbol group.

FIG. 4 is a block diagram illustrating a schematic configuration of a main control board and a display control board.

FIG. 5 is a flowchart illustrating a procedure of a start-up port process.

FIG. 6 is a flowchart illustrating a procedure of a fluctuation stop process.

FIG. 7 is a diagram showing a display example on a special symbol display.

FIG. 8 is a diagram showing a display example on a special symbol display.

FIG. 9 is a diagram showing a display example on a special symbol display.

FIG. 10 is a diagram showing a display example on a special symbol display.

[Explanation of symbols]

 2 player 4 game control unit 6 display control unit 6a fluctuation switching means 6b symbol fluctuation means 6c symbol group recording means 8 display unit 10 pachinko machine (game machine) 22 special symbol display (display unit) 26 ordinary symbol display 78, 86,88 assembly 80 left symbol group 80a left symbol 82 middle symbol group 82a middle symbol 84 right symbol group 84a right symbol 100 main control board (game control section) 110,210 CPU 112,202 ROM (symbol group recording means) 114 , 204 RAM 200 Display control board (display control unit) 212 Character generator 214 VDP

Claims (5)

[Claims] 1. A gaming machine, comprising: a display unit capable of displaying a symbol, wherein a bonus that is a gaming condition advantageous to a player is provided on condition that the symbol displayed on the display unit has a predetermined display mode. A symbol group recording means capable of recording a symbol group composed of two or more symbols, and a first symbol variation which sequentially displays symbols constituting the symbol group by using one or more symbol groups recorded in the symbol group recording means. And a variation switching means capable of switching between two or more symbols constituting the symbol group and a second symbol variation for changing the number of symbols to be displayed almost simultaneously. 2. The gaming machine according to claim 1, wherein the change switching means changes the first symbol change and the second symbol change after the symbol displayed on the display unit becomes a part of a predetermined display mode. A switching gaming machine. 3. A gaming machine, comprising: a display unit capable of displaying a symbol, wherein a bonus which is a gaming condition advantageous to a player is provided on condition that the symbol displayed on the display unit has a predetermined display mode. A symbol group recording means capable of recording a symbol group consisting of two or more symbols, and using at least one symbol group recorded in the symbol group recording device, after displaying two or more symbols constituting the symbol group, A gaming machine having symbol changing means for changing the number of symbols to be displayed simultaneously. 4. The gaming machine according to claim 1, wherein, in the second symbol variation, a symbol to be changed is determined by lottery. 5. The gaming machine according to claim 1, wherein, in the second symbol change, when changing the number of symbols to be displayed almost simultaneously, from within the area of the display unit to outside the area. A first display mode in which symbols are displayed invisibly so as to come out,
A gaming machine that performs one or both of a second display mode and a second display mode in which a symbol is visually displayed so as to enter the area from outside the area of the display unit.